<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>后台1</h1>
<h1><a th:href="@{/logout}">登出</a></h1>
</body>
</html>